Synthesis of ultra-fine TaB2 nano powders by liquid phase method
Synthesis of ultra-fine TaB2 nano powders by liquid phase method
复制标题
液相法合成超细TaB2纳米粉体
DOI：
10.1111/jace.15106
复制
发表时间：
2017-12-01
影响因子：
3.9
通讯作者：
Wang, He
中科院分区：
文献类型：
--
作者：
Ren, Xuanru;Feng, Peizhong;Wang, He
以氧化钽、硼酸和蔗糖为钽源、硼源和碳源，采用液相法合成了超细TaB2粉体。TaB2前驱体粉体为Ta-B-C-O网络体系，在常规氩气气氛下低温（1500℃）热处理得到TaB2粉体。XRD证实了TaB2的存在，而EDS和XPS证实了TaB2的组成和元素化学状态。TEM图像显示TaB2粉末呈血小板状，单晶SAED模式证实了TaB2为六边形。粒径分布曲线显示，TaB2粉体粒径分布在30 ~ 160 nm范围内，平均粒径为106 nm。
Ultra-fine TaB2 powders were synthesized by a liquid phase method using tantalum ethoxide, boric acid and sucrose as the sources of tantalum, boron, and carbon. The TaB2 precursor powders is a Ta-B-C-O network system, which were heat-treated at lower temperature (1500 degrees C) in normal argon atmosphere to obtain the TaB2 powders. XRD confirms the presence of only hexagonal TaB2, while EDS and XPS spectrums confirm the composition and element chemical states of TaB2. The TEM images show a platelet shape of the TaB2 powder and the monocrystal SAED pattern confirms the presence of hexagonal TaB2. Particle size distribution curves show that particle size of the TaB2 powders distributes in the range of 30-160 nm, whose mean particle size is 106 nm.